a very loud clap of thunder sent players running at the twins/rangers game in arlington, texas, yesterday. the boom was so loud, it actually shook the television cameras. the game was held up by rain for 46 minutes. welcome back to "cbs this morning." you feel that one in your bones. >> like incoming fire didn't it? >>> there's a surprising development this morning in the case of natalie wood. the investigation was reopened eight months ago, 30 years after she died off the coast of los angeles. as bill whitaker reports, the l.a. coroner's office changed the cause of death from accident to undetermined. >> it's one of hollywood's most enduring mysteries, what really happened the night actress natalie wood drowned while boating off catalina island. >> if you don't like this has been changed to undetermined or unresolved, that means it's not over. >> it was thanksgiving weekend 1981. wood and her husband, actor robert wagner, were enjoying the holiday on board the "splendour" with friend and fellow actor, christopher walken. at daylight, wood's body was found floating in the water. investiga